Posted by **Febby** on Friday, April 13, 2007 at 11:24am.

1) Integrate Cos^n(x) dx

2) Integrate e^(ax)Sinbx dx

3) Integrate (5xCos3x) dx

I Will be happy to critique your thinking on these.

1) Derive a recursive relation.

2) Simplest by replacing sin(bx) by

Exp[i b x] and taking imaginary part at the end.

3)

First integrate sin(yx) and then differentiate the answer w.r.t. y.

## Answer this Question

## Related Questions

- Integral calculus - Please can anyone help with the following problems - thanks...
- calculus - 1) Integrate (e^x+x)^2(e^x+1) dx 2) Integrate xe^x2 dx Let u=(e^x+x) ...
- Integral calculus - Please do help solve the followings 1) Integrate e^4 dx 2) ...
- Calculus - 6.] Replace the integral in exercise 5 (int. (1/ 1 – t) dt a = 0, b...
- Calc 1 - integrate from 0 to pi/4 (sec^2x)/((1+7tanx)^2)^1/3 integrate form pi^2...
- Calculus - How do you integrate [(x^2)(cos(2(x^3)))]? I tried to integrate by ...
- Calculus Indefinite Intergral - I need help with integrating these two problems...
- Calculus II - What is sin(i) -- (sin of the imaginary number, i) What is cos(i...
- calculus 2 - Justify, with a written explanation or a mathematical reasoning ...
- integrate - integrate du/3u and integrate x/x^2 dx it might be simple...i just ...

More Related Questions